(NpOLZU^ESTX BETONA (B/s ((NkIEW (B;s (NlXWOW (B:s (NgOSTEHIZDAT uKRAINY(B,s, 1948)
(NbIBLIOGR(B.: (NS(B. 135-136s
Keywords: (NbETON s -- (NfIZIKO(B-(NMEHANI^ESKIE SWOJSTWAs